[GitHub] [spark] younggyuchun commented on a change in pull request #25458: [SPARK-27931][SQL] Accept "true", "yes", "1", "false", "no", "0", and unique prefixes as input and trim input for the boolean data type.

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younggyuchun commented on a change in pull request #25458: [SPARK-27931][SQL] Accept "true", "yes", "1", "false", "no", "0", and unique prefixes as input and trim input for the boolean data type.
URL: https://github.com/apache/spark/pull/25458#discussion_r318264418
 
 

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 File path: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/StringUtils.scala
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 @@ -65,12 +65,15 @@ object StringUtils extends Logging {
     "(?s)" + out.result() // (?s) enables dotall mode, causing "." to match new lines
   }
 
-  private[this] val trueStrings = Set("t", "true", "y", "yes", "1").map(UTF8String.fromString)
-  private[this] val falseStrings = Set("f", "false", "n", "no", "0").map(UTF8String.fromString)
+  private[this] val trueStrings =
 
 Review comment:
   done

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